C#WinForm应用程序实现自动填充网页上的用户名和密码并点击登录按钮

1 HtmlElement name = webBrowser1.Document.GetElementById("ctl00$content$loginname");
2 if (name != null)
3     name.SetAttribute("value", User);
4 HtmlElement pass = webBrowser1.Document.GetElementById("ctl00$content$pwd");
5 if (pass != null)
6     pass.SetAttribute("value", Password);
7 HtmlElement login = webBrowser1.Document.GetElementById("ctl00_content_summit");
8 if (login != null)
9     login.InvokeMember("click");